Godsen Men's V-Neck Cotton Thermal Underwear Tops Long Sleeved 100% Cotton Water temperature does not exceed 30 , not chlorine bleaching, ironing highest temperature 110 , not dry, not wring, hang dry 100% Cotton Great to be Wear Alone at Home or Add an Extra Layer of Warmth Under Your Clothes Ultra Soft, Warm and Comfortable Elastic Waistband On Pant Lightweight but warm